-Hashimoto's disease can cause hair loss. This is usually occurs when the body is shunting resources, such as nutrients, to be used elsewhere in the body.
-But there are many different reasons of hair loss as stress, inheritance and autoimmune diseases.
-Telogen effluvium is the most common type of hair loss in hashimoto's disease due to under active thyroid gland.It's characterized by large clumps of hair falling out, usually while showering or brushing.It also usually causes hair loss in diffuse pattern, over the entire scalp.